Home / 21,624.04-29,796.90-15,949.80

Finding the Fourth Proportional to 21,624.04, 29,796.90 and 15,949.80

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Solution

The fourth proportional to 21,624.04, 29,796.90 and 15,949.80 is: 21,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.04 : 29,796.90 = 15,949.80 : x
  2. Step 2: Convert to fraction form
    21,624.04/29,796.90 = 15,949.80/x
  3. Step 3: Cross multiply
    21,624.04x = 29,796.90 × 15,949.80
  4. Step 4: Simplify right side
    21,624.04x = 475,254,535.81
  5. Step 5: Solve for x
    x = 475,254,535.81/21,624.04
  6. Step 6: Final answer
    x = 21,978.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.